Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 155gr | SUS-TAC HP bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Winchester 748 and Ramshot Wild Boar.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 52,185 psi | 87% | 2592 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 54,346 psi | 90% | 2697 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 52,576 psi | 87% | 2730 fps | 96.7% |
| Accurate 2230 | <<locked>> | 86% | 52,982 psi | 88% | 2740 fps | 97.2% |
| Accurate 2460 | <<locked>> | 92% | 53,432 psi | 89% | 2720 fps | 99.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 49,748 psi | 83% | 2697 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 53,896 psi | 90% | 2766 fps | 99.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 46,137 psi | 77% | 2674 fps | 99.7% |
| Accurate LT-30 | <<locked>> | 88% | 53,359 psi | 89% | 2618 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 53,838 psi | 89% | 2635 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 98% | 53,534 psi | 89% | 2762 fps | 97.8% |
| ADI AR 2207 | <<locked>> | 86% | 53,766 psi | 89% | 2641 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 48,225 psi | 80% | 2651 fps | 95.9% |
| ADI AR 2219 | <<locked>> | 88% | 52,228 psi | 87% | 2723 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 53,301 psi | 89% | 2726 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 96% | 51,082 psi | 85% | 2726 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 54,114 psi | 90% | 2828 fps | 98.5% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 53,374 psi | 89% | 2844 fps | 96.5% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 45,905 psi | 76% | 2664 fps | 97.4% |
| Alliant Reloder-10x | <<locked>> | 90% | 51,793 psi | 86% | 2674 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 50,502 psi | 84% | 2736 fps | 96.7% |
| Alliant Reloder-7 | <<locked>> | 84% | 51,895 psi | 86% | 2615 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 51,895 psi | 86% | 2615 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 53,243 psi | 88% | 2769 fps | 96.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 45,876 psi | 76% | 2677 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 94% | 53,055 psi | 88% | 2677 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 96% | 51,140 psi | 85% | 2753 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 94% | 53,200 psi | 88% | 2835 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 92% | 54,172 psi | 90% | 2749 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 51,895 psi | 86% | 2726 fps | 99.8% |
| Hodgdon H4198 | <<locked>> | 84% | 52,214 psi | 87% | 2618 fps | 100% |
| Hodgdon H4895 | <<locked>> | 98% | 53,838 psi | 89% | 2776 fps | 98.4% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 51,619 psi | 86% | 2789 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,402 psi | 55% | 1617 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 52,156 psi | 87% | 2726 fps | 98% |
| IMR 3031 | <<locked>> | 98% | 51,677 psi | 86% | 2772 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 50,691 psi | 84% | 2684 fps | 96.7% |
| IMR 4198 | <<locked>> | 90% | 52,779 psi | 88% | 2641 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 51,706 psi | 86% | 2772 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 96% | 53,301 psi | 89% | 2726 fps | 98.7% |
| Lovex D073.4 | <<locked>> | 86% | 53,722 psi | 89% | 2733 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 92% | 53,316 psi | 89% | 2723 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 98% | 51,285 psi | 85% | 2743 fps | 99.6% |
| Lovex S053 | <<locked>> | 82% | 53,998 psi | 90% | 2549 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 51,532 psi | 86% | 2651 fps | 97.4% |
| Lovex S062ᴾ | <<locked>> | 100% | 49,516 psi | 82% | 2687 fps | 98.3% |
| Norma 200 | <<locked>> | 86% | 51,706 psi | 86% | 2651 fps | 100% |
| Norma 201 | <<locked>> | 98% | 52,040 psi | 86% | 2710 fps | 98.6% |
| Norma 202 | <<locked>> | 98% | 52,330 psi | 87% | 2730 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 49,574 psi | 82% | 2726 fps | 97.2% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 50,183 psi | 83% | 2743 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 96% | 52,533 psi | 87% | 2753 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 92% | 52,054 psi | 86% | 2684 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,489 psi | 56% | 1657 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 53,345 psi | 89% | 2726 fps | 99.6% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 52,997 psi | 88% | 2841 fps | 97.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 43,961 psi | 73% | 2703 fps | 98.3% |
| Rottweil R 901 | <<locked>> | 96% | 53,476 psi | 89% | 2713 fps | 99.8% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 52,417 psi | 87% | 2707 fps | 98.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 42,438 psi | 71% | 2608 fps | 96.3% |
| Shooters World AR Plus | <<locked>> | 86% | 53,722 psi | 89% | 2733 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 98% | 51,285 psi | 85% | 2743 fps | 99.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 49,516 psi | 82% | 2687 fps | 98.3% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 53,925 psi | 90% | 2694 fps | 98.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 51,967 psi | 86% | 2372 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 52,707 psi | 88% | 2730 fps | 99.9% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 45,063 psi | 75% | 2664 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 52,475 psi | 87% | 2684 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 51,822 psi | 86% | 2730 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 52,185 psi | 87% | 2635 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 47,863 psi | 80% | 2585 fps | 99.9% |
| Somchem S321 | <<locked>> | 92% | 50,908 psi | 85% | 2717 fps | 98.7% |
| Somchem S335 | <<locked>> | 98% | 53,577 psi | 89% | 2674 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 50,705 psi | 84% | 2697 fps | 97.1% |
| Somchem S355ᴾ | <<locked>> | 100% | 43,830 psi | 73% | 2615 fps | 96.4% |
| Vihtavuori N120 | <<locked>> | 86% | 53,693 psi | 89% | 2592 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 52,083 psi | 87% | 2621 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 51,619 psi | 86% | 2631 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 50,430 psi | 84% | 2694 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 52,649 psi | 87% | 2707 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,221 psi | 70% | 2559 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 96% | 54,114 psi | 90% | 2733 fps | 98.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 50,734 psi | 84% | 2700 fps | 99.7% |
| Winchester 748 | <<locked>> | 96% | 52,025 psi | 86% | 2769 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 98% | 50,908 psi | 85% | 2736 fps | 97.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 48,994 psi | 81% | 2546 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 33,098 psi | 55% | 2339 fps | 99% |
| Accurate 2200 | <<locked>> | 82% | 46,093 psi | 77% | 2621 fps | 95.3% |
| Accurate 2230 | <<locked>> | 82% | 46,050 psi | 77% | 2628 fps | 95.7% |
| Accurate 2460 | <<locked>> | 80% | 35,708 psi | 59% | 2418 fps | 97.3% |
| Accurate 2495 | <<locked>> | 80% | 25,628 psi | 43% | 2224 fps | 97.3% |
| Accurate 2520 | <<locked>> | 80% | 31,024 psi | 52% | 2352 fps | 95.3% |
| Accurate 4064 | <<locked>> | 84% | 27,572 psi | 46% | 2287 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 41,959 psi | 70% | 2438 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 80% | 42,337 psi | 70% | 2448 fps | 98.4% |
| ADI AR 2206H | <<locked>> | 90% | 41,611 psi | 69% | 2559 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 45,092 psi | 75% | 2523 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 45,310 psi | 75% | 2602 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 39,784 psi | 66% | 2520 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 36,753 psi | 61% | 2434 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 30,356 psi | 50% | 2359 fps | 99.9% |
| Alliant Power Pro 1200-R | 36.5 gr | 82% | 39,102 psi | 65% | 2559 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 49,719 psi | 83% | 2782 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 38,072 psi | 63% | 2520 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,130 psi | 63% | 2451 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 44,512 psi | 74% | 2635 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 45,977 psi | 76% | 2530 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,306 psi | 67% | 2431 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 46,673 psi | 78% | 2661 fps | 95% |
| Bofors RP3 | <<locked>> | 94% | 37,478 psi | 62% | 2520 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 34,664 psi | 58% | 2343 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 84% | 33,953 psi | 56% | 2434 fps | 95% |
| Hodgdon CFE223 | <<locked>> | 90% | 46,224 psi | 77% | 2717 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 36,419 psi | 61% | 2451 fps | 98.6% |
| Hodgdon H335 | <<locked>> | 80% | 36,883 psi | 61% | 2464 fps | 97.8% |
| Hodgdon H4198 | <<locked>> | 80% | 46,253 psi | 77% | 2526 fps | 99.7% |
| Hodgdon H4895 | <<locked>> | 88% | 39,262 psi | 65% | 2520 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 39,914 psi | 66% | 2579 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,685 psi | 41% | 1444 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 40,770 psi | 68% | 2530 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 29,124 psi | 48% | 2336 fps | 97.3% |
| IMR 4064 | <<locked>> | 96% | 44,628 psi | 74% | 2585 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 39,305 psi | 65% | 2431 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 42,641 psi | 71% | 2618 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 84% | 36,753 psi | 61% | 2434 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 43,395 psi | 72% | 2569 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 80% | 35,389 psi | 59% | 2411 fps | 95.9% |
| Lovex D073.6 | <<locked>> | 84% | 31,923 psi | 53% | 2385 fps | 95.6% |
| Lovex S053 | <<locked>> | 80% | 51,010 psi | 85% | 2510 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 43,134 psi | 72% | 2510 fps | 95.5% |
| Lovex S062 | <<locked>> | 90% | 36,245 psi | 60% | 2444 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 42,975 psi | 71% | 2516 fps | 100% |
| Norma 201 | <<locked>> | 86% | 35,984 psi | 60% | 2421 fps | 95% |
| Norma 202 | <<locked>> | 80% | 29,588 psi | 49% | 2297 fps | 95.5% |
| Norma 203B | <<locked>> | 94% | 40,886 psi | 68% | 2572 fps | 95% |
| Ramshot Big Game | <<locked>> | 96% | 44,005 psi | 73% | 2638 fps | 95.3% |
| Ramshot Wild Boar | 42.8 gr | 90% | 43,149 psi | 72% | 2595 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 86% | 42,757 psi | 71% | 2530 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,627 psi | 41% | 1476 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,390 psi | 60% | 2428 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 46,485 psi | 77% | 2733 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 36,230 psi | 60% | 2530 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 33,272 psi | 55% | 2343 fps | 96.5% |
| Rottweil R 902 | <<locked>> | 88% | 36,230 psi | 60% | 2418 fps | 95% |
| Rottweil R 903 | <<locked>> | 98% | 39,639 psi | 66% | 2552 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 80% | 43,395 psi | 72% | 2569 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 31,923 psi | 53% | 2385 fps | 95.6% |
| Shooters World Precision | <<locked>> | 90% | 36,245 psi | 60% | 2444 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 38,508 psi | 64% | 2434 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,673 psi | 78% | 2303 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,408 psi | 67% | 2526 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 42,337 psi | 70% | 2615 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,406 psi | 64% | 2454 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 42,656 psi | 71% | 2575 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,749 psi | 53% | 2267 fps | 96.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 27,441 psi | 46% | 2182 fps | 95.7% |
| Somchem S321 | <<locked>> | 82% | 36,347 psi | 60% | 2451 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 31,169 psi | 52% | 2274 fps | 97% |
| Somchem S341 | <<locked>> | 92% | 44,353 psi | 74% | 2592 fps | 95.6% |
| Somchem S355 | <<locked>> | 98% | 41,104 psi | 68% | 2566 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 45,121 psi | 75% | 2477 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,129 psi | 60% | 2362 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 31,531 psi | 52% | 2280 fps | 98.6% |
| Vihtavuori N135 | <<locked>> | 80% | 26,571 psi | 44% | 2234 fps | 97.4% |
| Vihtavuori N140 | <<locked>> | 80% | 27,992 psi | 47% | 2238 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 94% | 34,722 psi | 58% | 2411 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 84% | 36,564 psi | 61% | 2428 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 84% | 30,530 psi | 51% | 2316 fps | 95.6% |
| Winchester 748 | 39.1 gr | 84% | 34,998 psi | 58% | 2457 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 90% | 39,175 psi | 65% | 2530 fps | 95.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 85 powders for .308 Win. Ackley Improved loaded with the .308 | 155gr | SUS-TAC HP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,844 fps; across all powders the maximum-charge window runs from 1,617 fps to 2,844 fps. Accurate 2495 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Power Pro 1200-R, Winchester 748, Ramshot Wild Boar rank at the top here: for .308 Win. Ackley Improved with the .308 | 155gr | SUS-TAC HP they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.